
That, FYI, was SARCASM.
The Big Bang Theory Season 3, Episode 1

No, I do not have a SARCASM sign.
The Big Bang Theory Season 1, Episode 2

Sarcasm.
The Big Bang Theory Season 2, Episode 19

I don't appreciate
your SARCASM,
The Big Bang Theory Season 7, Episode 17

That wasn't SARCASM?
The Big Bang Theory Season 1, Episode 2